Does BM use the local NW hosts file when resolving addresses?

I tried putting an entry in my BM server's hosts file but when I try to go to
that web site it gives me the following error:

HTTP Error

Status : 502 Bad Gateway

Description : DNS Host address list could not be resolved

Note : If necessary, please contact your Systems Administrator for resolution.

Does a change to the hosts file require a reboot?

Terry Davis
Sr. Network Administrator